Electric cut-out.



' PATENTEB JULY 16; 1907.

* E. o. JACKSON.

ELECTRIC OUT-OUT.

APPLIO4TIOH FILED FEB. 6, 100"].

- age to thuinstrument.

' The main object ol the present invention is the pro-- EVERETT o. JAC'KSON, or sTrLLwELL, ILLINOIS.

ELECTRIC CUT-OUT.

Specification of Letters Patent.

- Patented July r1651907.

Application liladlebruary 6,1907. Serial No. 1356;082-

To all whom it may concern.

Boit k'nown that I, Eraser-1: O. .lscxsoma' citizen of ,the United States, residing at Stillwell, in the county of llnncock and State of Illinois, have invented new and useful. Improvements in Electric Cut-Outs,-

of which the following is aspccification. The invention relates to an improvement in switches or cut-outs [or telephones, telegraphs and similar circuits, whereby to provide a simple means for disconnecting the instrument'irom the main'line.=in the event ohm electriml swrm and thereby prevent damvision of a simple form of switch carrying a fixed ground connection and having the service terminzilhnanged for manual .(lisconnection when desired, said service terminal being normal y-under tension to automatically engage the ground in the event of such disc-on ncgtion.

:The-invention will be, described thejollgwing specification, reference being had particularly to the accompanying drawing, in whichz-The drawing -presents a perspective view of a cut-out constructed in'nc wrdanc with my invention" -:In the drawings, wherein is: shown the preferred embodiment of the details of. structure, '1 represents an insulntml base (llSlgllBtl to be secured tofa suitable fixturein'auy desired manner. On this base, near the upper-curl, is armngcd a metallic loop 2, preferably of inverted U-shupo With the terminals inserted in series in thehaso. 'lheloo p 2, which is preferablyjof substan tial wire l'orms the grounding loop. of the cut-out, the

gmunding conductor 3 of the instrument being eon-- nk-r-tod to one arm of the. loop, preferably by winding the terminal of said conductor about the arm as at 4. A grounding conductor Eris similarly connected at 6 in the opposite arm ofthe 1oop, .thereby effectively grounding the instruniont asis necessary for instruments armugul in grounded circuits. The service ('nu'z llu'lm' 7 lozuliug to the instrument is also con;

m-ctullo tlu: has- 1, and is terminally wound at 8 about the n-lativoly lower oml'of a hook 9. The hook is arntugzul within the plane of the loop 2, with its hook wp'ti u l0 lll. |lt (l some dislum-c below thc cmss har u'm the loop. "llu: service coudurlor from the source ul (urn-Ill sup ly, us I2, is alsosccurod lo the base, and u-l'luiuully t()l l('ll zit lZl :lboul contact member 15. 'l'lumulru'l. uu'mlu-r culufu'isos 11 single length of Wllt: lilullllttll in u Mulu'l. in tho base I. ruljzuzout the lower r-ml of said lmsv, Szlill uu.-mbcr.lmiug, immurlintoly adjur'r'ul. its connection with the home, formed to provido spring coils 16, From the coils the contact member projcctsin the form of an arm 17, with its upper tcrminal arranged as to permit its engagement with the hook 10. The respective wires or conductors are preferably secured to the base through the medium of stapics 18, the conductor being provided with insulating sleeves 19 to be engaged by the staples, thereby providing additional insulation at this point.

-; In use the cut-out isn't-ranged as illustrated in the drawing, with the terminal of the arm 1 engagedibe -neath the hook 1U. The service current then enters the instrument through; the conductor 7, book 9, arm

17, and conductor'lZ, the grounding from the instrumentbeing through conductor'3, loop 2, and conductor 10 and released, where upo n the spring coils 16 operate to automatically force saidarm into engagement with the cross bar 11 of the loop 2. The service current is thus eflectively grounded and the instnnnent disconnected, thereby preventing its damage by electrical energy generated by a. storm, or other means.

The invention provides a simple form of cutout I designed to be quickly and conveniently operated disrupt the -servi'ce conductor and automatically ground the live po rtion'thercof.

Having thus described the invention what is claimed member to form a contlnuatlon ot the service conductor,-

sald member belng arranged to automatlcally engage the groundlng loop when disconnected from the servlce coliductor. J

:l. A cut-out comprising on bcr secured thereon, grounding conductors electrically engaging the loop member, a hook secured on the base and forming one termllml of n sorvlce conductor, and a. spring urtn secured on the base and torlnlng an additional terminal of the scrvlco conductor. 4

4. A cut-out comprising an Insulated base, a loop member secured thereon, grounding conductors electrically engaging the loop member, u hook secured on the [mac and tormlng one terminal of a service conductor, and a spring urm sm-ln'ml on the bus-c and tui'mlng an additional terminal of the service conductor, suld sprlng member being (lcsluuvd to engage the hook to complete the service con- (lm'lul' or to engage the loop to ground the service conductor.

A cutout cnmprlslng' nn Insulated base, 11 loop aeinsulated base, a loop menu 6 5 5. In the event of in electrical storm or other disturb: ancc, the arm 17 is'rnanually disengaged from the hoolc ioo in testimony whereof. I am: my signature ln presence 10 of two witnesses.

Witnesses THOMAS Manson.

TlL'FoRu his EVERETT O. X JACKSON,

mark 

